Pumping system.



L. H. SHAW.

PUMPING SYSTEM. I APPLICATION FILED AUGJ, 1915.

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ATTORNEY L. H, SHAW.

PUMPING SYSTEM.

APPLICATION FiLED -AUG. 1, 1916.

' INVENTOR Ji Shaw:

Patented Dec. 18, 191?.

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ATTORNEY L. H. SHAW. PUMPlNG SYSTEM. MPLICATWH FILED AUG-1,1916.

Patenw Dec. 18,1917.

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f' INVESTOR Lloydligflam V/ZTNESSESI ATTORNEY more 11. smiw, on Moon; etnasanr, r nnsYL am.

PUMPING sigma.

' Application filed. August 1, 1916. Serial No. 112,560.

To all whom it may concern: 1

Be it known that I, LLOYD H. SHAw,a]

citizen of the United States, residing at Mount Pleasant, in the county of Westmore land and State of Pennsylvania, have in vented certain new and useful Improve ments in Pumping Systems, of. which the following is a specification.

This invention relates. to pumping sysl0 tems, and more particularly to a systemin which a plurality of pumping elements are connected to a closed supply circuit. V

One of the main objects ofthe invention is to provide a pumping system of maximum capacity which requires a relatively small amount of power for itsoperationa A;'fu'r ther'object is to providea system of simple construction and operation, the operat ve partsof which are so relatively disposed as tobalan'ce each other so as to reduce vibration. Further objects will appear from the detailed description.- r

In the drawings Figure 1 is a side view of the invention, Fig.2 is a top plan view, and j i Fig. 3 is .a section on line 33 of Fig. 2. In carrying ,my invention into eflect I provide a rectangular pipe frame 1.' 'This frame is provided at. the center of each side U and of each end, respectively, witha T2 adapted to be connected ,to a supply pipe leading from a sump or other suitable source of supply. Near each end of each side of the frame 1, Ts 3 are secured in the frame. Each of these Ts carries a valve casing 4 in which is mounted an upwardly opening inlet valve of usual construction. Each-of the casings 4 communicates with a water cylinder at the longitudinal center thereof. A valve casing v6 is secured to the top of each cylinder5, and each casing communicates with one end ofa water head 7. Mounted inthe casings 6 are upwardly opening discharge valves of standard construction. The

waterheads 7 are connected by a cross pipe 8which is provided at its longitudinal center Withan air chamber 9.

. A plunger rod 10 is mounted in each pair ofwater cylinders 5 and is provided, on each end, with aplunger head which fits snugly the interior of the cylinder, of usual con- .structiomnot shown. Each water cylinder is provided, at its inner end, with a packing flange l1 surrounding the plunger rod 10 so as to make a water tight closure. A

flanged spacing ring 12 is securedbotween Specification of Letters Patent.

Patented Dec, 18,1917.-

the ends of the water cylinders 5 concentric therewith and acts to hold the cylinders in proper spaced relation and to protect the The inner end of rod 10 is connected to the inner end of a piston rod 13. This piston rod is connected to a cross head lislidable'in a guide 15 secured between theinner water cylinder 5 and the steam cylinder 16. The cylinder 16 is provided,"on its-inner side, with a valve casing '17 in which is mounted a slide valve of usual construction,"

which governs the admission and exhaust of steam into and from the cylinder'j in the usual manner. The cylinder and the valve may beof any standard construction, being provided with suitable inlet and exhaust portways which communicate with the inlet pipe 18 and exhaust pipe 19, respectively. Each valve has its ends connected by rods 20 to the inner ends-of operating links 21.

The outer end of each link ismounted on an eccentric'22 keyed on a shaft 23 which is rotatably mounted in standards 24. .A com-. paratively heavy fly wheel 25 is keyed :at the center of shaft 23. At each end of the shaft end of an arm 29 integral with the cross head 21 and projecting inwardly therefrom.

\Vhen steam is admitted to the cylinders 16,- the pistons which are mounted therein so as to operate in'the usual manner, and are connected to the piston rod 13, are reciprocated. This causes reciprocation of the plunger rod 10 and the cross heads 14. The cross heads act, through the rods 28 and disks '26, to rotatethe shaft 23 which causes rotation of the fly wheel 25. 'As the plunger rods 10 move outward, part of the water in the outer water cylinder 5 is forced upward through the valve casing 6' into the water head 7 and cross pipe 8. At the same time,

an equal amount of water is-drawn by suc- 5 tion into the inner cylinder 5;; hen the through the opening 30 of thewater head which may be connected to suitable discharge pipes. u I W The eccentrics 22am so relatively disposed on the shafts 23 that the diagonally opposite plunger rods will be similarly operated. This will be clear from Fig. 2 of the draw-' iiigs. In this figure, th'e'upp'er left hand and the lower right hand plunger rods are in extended or outward position, and the upper right hand and lower left hand rods are in withdrawn or inward position. The valves in the casings 17 are being moved toward the left hand end, and the right hand end, of the upper and lower casings, respectively. When the valves reach the ends of the casings, the exhaust 19 will be opened, and the inlet 18 will be opened in front of the pistons in the cylinders 16 so as to cause reverse movement of the same. This will cause the upper left hand and the lower right hand plunger rods to move inward, and the lower left hand and the upperright hand plunger rods to move outward, thus reversing the operation. By having the coin trolling mechanism so arranged that the diagonally opposite plunger ro'ds move similarly, the vibration produced at one corner of the frame olfsets to a great extent the vibration produced at the other corner, thus reducing the total vibration of the pumping system to a minimum.

The length of the stroke of the piston rods 1'33is a little less than one half of the length of the water cylinder =5. By this arrangement, each cylinder is approximately either half emptied or half fill-ed with each stroke. lVhil'e the plunger 10 is acting to force the water out of one of the cylinders, it is also acting to suck an equal amount of water into the other cylinder. By this arrangement the plunger rod does practically twice the amount of work as is done by the plunger of a single action pump of ordinary con struction. The fly wheels 25,- due to their great momentum, are of material assistance in the operation of the plunger rods, acting to reciprocate the cross heads 14 by means of the drive rods 28. For this reason, very little more power is consumed in operating the plunger rods 10 for compression and sucti'on purposes simultaneously than would be required for operating a similar plunger for a single action pump. By thus constructing and arranging the various elements of my pumping system I provide a system 'of maxim'um'ca'pa'city for the power consumed which is of very simple construction and operation and in which the vibration is reduced to a minimum. Also, due to the continuity of the pipe frame 1, what little vibration is generated is evenly distributed throughout the whole pumpingsystem,so-as to cause a minimum of wear. Byhaving an -i-nclosed supply circuit provided with supply inlets at the center of each side and end-prespectively, I insure that the water cylinders will at all times be properly supplied with a 'suflieient quantity of water for operating purposes. This pipe frame also acts as a supporting base and bracing medium for the various cylinders and valve casings, and co-acts with the same to provide a structure of great strength which occupies a minimum of space.

It will be obvious that certain changes can be made in the construction and arrangement of the different parts of my invention without departing from the field andscope of the same, and I intend to include all such changes as fall within the scope of the appended claims in this application, in which a preferred form only of the invention is disclosed. A,

What I claim, is V 1. In a pumping system, an endless rectangular pipe 'supplv frame, pairs of axially alined pumping cylinders mounted within the frame adjacent each end, and equi-distant from the transverse center, thereof, said cylinders being secured directly to and communi'catingwith said frame, water heads secured to the adjacent ends of each pair of cylinders and communicating therewith, cross-pipes secured to and communicating with the water heads of the pairs of cylin ders at each end of the frame, operating cylinders mounted at the center of the frame in alinement longitudinally thereof with said pumping cylinders. plunger rods operable in said pairs of pumping cylinders, piston rods operable in said operating cylinders and operatively connected tothe said plunger rods, and means for controlling the admission and exhaust of operating fluid to and from the operating cylinders so as to cause similar operation of the diagonally opposite plunger rods,

2. In a pumping svstem,an'end-lessrectangular pipe supply frame, pairs of axially alined pumping cylinders mounted within the frame adjacent each end, and equi-dis= taut from the transversecenter, thereof. said cylinders being secured directly to and com= municating with said frame, Water heads secured to the adjacent ends of each pair of cylinders and c mmunicating therewith, cross-pipes secured to and communicating with the water heads of the pairs of cylinders at each end of the frame, transverse shafts rota-tablyrmounted between the pairs of cylinders 'at each end vof the frame, fly wheels secured thereon at the transverse center of he frame, d sks secured on the ends of said shafts. operating cylinders mounted at the center of the frame in alinement longitud-inallv thereof with said pumping cylinders-plunger rods o erable in said pairs of pumping cylinders, piston rods operablein said operating cylinders and operatively respected to the said ,plnnger rods, -QP5 ating rods having their inner ends connccted to said piston rods so as to be reciprocated thereby and their outer ends eccentrically pivoted to said disks in reverse relation so as to cause rotation of said shaft when the piston rods are reciprocated, valve casings carried by said operating cylinders and adapted to contain valves for controlling the inlet and exhaust ports thereof, valve rods operable through the ends of each of said casings, and links pivoted thereto at their inner ends and having their outer ends related as to cause similar operation of the diametrically opposite plunger rods.

In testimony whereof I atfix my signature in presence of two Witnesses.

LLOYD H. SHAW. Witnesses:

FRANK COOPER, GROVER C. REESE.

copies otthis patent may be obtained for five cents each, by addressing the (lommissioner of Patentl. Washington, .D. 0. 

